I have installed the Crucial memory sticks in slot 1 & 3 (this seems to be a bit more stable) (Crucial site states the mem is compatible)I set the voltage to 1.5v as per the mem recommendation in bios and unganged. I have had to set FSB/DRAM setting to 1:2.66. Opened up core 4 as per the bios. (Using the original fan that came with CPU) Updated bios to version 1.4

I cannot get the ddr3 to work at 1333 for when it is set to this, when booting up Windows or Linux it freezes the system every time. I have seen a thread (https://forum-en.msi.com/index.php?topic=131441.0) where the voltage was increased to 1.7v and had results that the system became stable. The Crucial states 1.5v, so is this wise to try this option without over heating anything?

I have taken the plunge to up the voltage to 1.71v in the bios and reset the speed and it is running at 1333 and with no problems as yet, so for now all seems well. ( 9-9-9-24 2t (668.4mhz))

I did some testing and all seemed well with bringing the 4th core to life <big smile>Sorry, I am not sure what information you are requesting for the PSU. Max 850w ?

I am sure the settings need to be adjusted in the bios as cpuz is showing 'single' no 'unganged' and DC MODE is still greyed, what should be set to make sure this is set correctly? I have selected the option for unganged - enabled.